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java-func-caller
Advanced tools
use spawn call the java method which the jar support. if want the java method can be called by node, the jar file must be meet three conditions.
use spawn call the java method which the jar support. if want the java method can be called by node, the jar file must be meet three conditions.
first, the jar must be a runableble jar file and the name of the jar must be the main class full name. for example your jar's main class is : your.foo.Main, then your jar name must be : your.foo.Main.jar。
sencod, the main class of the jar must has a public static method: public static Map<String, Object> run(List args)
the map which run method return must contains the following keys
if the jar meet the top conditions, then your can call the method use the following code:
var FuncCaller = require('java-func-caller');
var caller = new FuncCaller([__dirname + './your.foo.Main.jar']);
caller.callFunc({
func : 'your.foo.Main',
params : [1, 2, 3, 4, 5],
success : function(data){
console.log('success => task id:' + data.task_id + ', value:' + data.value);
},
error : function(data){
console.log('error => ' + data.error_msg);
}
});
package org.myless.func;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
public class FooFunc {
public static void main(String... args){}
public static Map<String, Object> run(List<String> args){
Map<String, Object> result = new HashMap<String, Object>();
if(args.size() > 0){
result.put("status", String.valueOf(0));
result.put("value", "join result: " + join(args));
}else{
result.put("status", "-1");
result.put("error_msg", "empty list!");
}
return result;
}
public static String join(List<String> args){
if(args == null || args.size() == 0) { return ""; }
StringBuffer buff = new StringBuffer();
for(String i : args){
buff.append(i);
}
return buff.toString();
}
}
FAQs
use spawn call the java method which the jar support. if want the java method can be called by node, the jar file must be meet three conditions.
We found that java-func-caller demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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